> ## Documentation Index
> Fetch the complete documentation index at: https://docs.haiper.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Rate Limits

To prevent misuse and effectively manage capacity, we have established usage limits for users accessing the Haiper API.

There are two types of rate limit:

1. <strong>HTTP(s) calls</strong>: the maximum number of API requests an user can make over a defined period of time. By default, each user can have up to <code>500 HTTP requests</code> in one minute.
2. <strong>Concurrency of the generations</strong>: the number of generations an user can run simultaneously. By default, each user can have up to <code>40 generations</code> being processed simultaneously.

If you exceed any of the rate limits, you will get the <code>429</code> error.

If you require higher concurrency, please [contact us](mailto:api@haiper.ai) so we can adjust the settings to meet your needs.